文章信息/Info

Title:

Domestic Research Process of Matrix Modification for  Carbon/Carbon Composites

作者:

 付前剛; 李賀軍; 沈學濤; 李克智

 (西北工業大學 超高溫復合材料重點實驗室 碳/碳復合材料工程技術研究中心，陜西 西安710072)��

Author(s):

 FU Qiangang;  LI Hejun;  SHEN Xuetao;  LI Kezhi

 (C/C Composites Research Center, Northwestern Polytechnical University, Xi’an 710072, China)

關鍵詞:

 ; 碳/碳復合材料; 基體改性; 燒蝕

文獻標志碼:

A

摘要:

    碳/碳（C/C）復合材料在高溫含氧氣氛下的氧化燒蝕問題嚴重制約該材料在航空航天領域的推廣應用，基體改性技術是提高該材料高溫抗氧化抗燒蝕能力的有效手段。介紹了目前發展的化學氣相滲透、先驅體轉化、反應熔體浸滲、化學氣相反應等基體改性技術的主要方法，綜述了SiC，ZrC，TaC，HfC，ZrB��2，WC，Cu等抗氧化和抗燒蝕組元改性C/C復合材料的研究現狀。指出難熔金屬碳化物和硼化物，如HfC，ZrC，TaC，HfB��2，ZrB��2等，具有熔點高、高溫性能穩定、抗燒蝕性能優良等特點，是提高C/C復合材料高溫抗氧化抗燒蝕的理想基體改性材料，并提出了C/C復合材料基體改性研究中存在的問題和今后潛在的發展方向。��

Abstract:

    Oxidation and ablation of carbon/carbon (C/C) composites in oxidation�瞔ontaining environments limits their applications as the high�瞭emperature structural materials in aeronautics and aerospace fields. Matrix modification is an effective method for protecting C/C composites against oxidation and ablation at high temperature. The methods for matrix modification, including chemical vapor infiltration, precursor infiltration pyrolysis, reaetive melt infiltration and chemical vapor reaction, were introduced. The research status of several modification materials, including SiC, ZrC, TaC, HfC, ZrB��2, WC and Cu, were reviewed. Refractory carbides or borides, such as HfC, ZrC, TaC, HfB 2 and ZrB 2, characterized by high melting point, excellent stability and ablation resistance at high temperature, are the perfect candidates for modifying C/C composites. The present problems and the potential development direction on the investigation of matrix modification for C/C composites were also proposed.��